Abstract
Magnetic measurements and Mössbauer spectroscopy revealed two types of spin reorientation in DyFe 0.9975Co 0.0025O 3 in the temperature range 77–300 K. The higher temperature transition was a continuous rotation of Fe 3+ spins from the a to the c axes of the single crystal in the region 260-145 K. The lower temperature transition was from a weakly ferromagnetic to the purely antiferromagnetic state. A peculiarity was observed with both methods. When the Fe 3+ spins, turning from the a towards the c axis, form an angle of about 20° with the latter, they do not proceed to reach c, but jump to the b axis and the crystal becomes a pure antiferromagnet. An external magnetic field of 10 kOe, H ext c, does not change this reorientation pattern, but a smaller field along a completes the reorientation along the c axis. Mössbauer spectra indicate two hyperfine fields during the continuous spin reorientation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.